Window regulator



Feb. 23 1926. 1,574,333

E. L. ACKERMAN ET AL WINDOW REGULATOR Filed March 5, 1925 2 Sheots-Sheet1 HHIIHHIIHIMMI 2 J I 2 I I ""M W" TIM WW A TTORNE Y.

Feb. 23,1926. 1,574,333

E. L. ACKERMAN El AL I WINDOW REGULATOR Filed March 5, 1925 2 sheots-sheet 2 A TTORNE Y.

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EDWARD L. ACKERMAN AND ALOIS J. ZWIERZINA, 013 DETROIT, MICHIGAN, AS-

SIGNDE$ T0 aoxnmramsnanssan-rnzznr, INC... 015 DETROIT, MICHIGAN, A 003-POBATION OF MICHIGAN.

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' Application filed March 5, 1925. Serial 110.1%,893.

To all whom it may concern:

Be it known that we, EDWARD L. Aoxnm MAN, a citizen of the UnitedStates, and Arms J. Zwmazrim, a citizen of the Republic of Germany.residing at Detroit, in the county of Wayne-and State of Michigan, haveinvented a new and useful Improvement in Window Regulators. of which thefollowing is a specification. i

This invention relates to window regulators and the object of theinvention is to provide a window regulator for automobiles in which thewindow is raised or'lowered by rotation of a crank.

Another object of the inventlon is to rovide a window regulator in whichthe weight of the window is counterbalanced so that it may be raised aseasily as lowered.

A further object of the invention is to provide a window regulator inwhich the window is locked from movement at any point upon cessation ofrotation of the and is very positive in action.

These objects and the several novel features of the invention arehereinafter more fully described and claimed and the preferred form ofconstruction by which these objects are attained is shown in theaccompanying drawings in which- Fig. 1 is a view of the window regulatorshowing the sash and frame to which it is connected. I Fig. 2 is asection taken on'line 22 of Hg. j

Fig. 3 is a view of the locking mechanism with a portion of the casebroken away.

Fig. 4 is a section taken on line 44 of Fig.

Fig. 5 is a Fig. 4. Y

Fig. 6 is a perspective view of the actuating member operated by thecrank.

Fig. 7 is a'plan view of the lock casing.

As shown in Fig, 1 a frame 1 is provided having ways 2 therein in whicha window 3 is slidable vertically. At the lower edge the window isprovided with a sash 4 having a way 5 in which a roller 6 carried by theend section taken on line 5-5 of,

racket 11 and a fiat coiled spring 14 is sccured at one end tojhestationary pin 13 and at the opposite end to the rotatable pin 8 asshown 1n Figs. 1 and 2. This stationary pin 13 is provided with a slotfor receiving the'end of the spring 14 and the slot extends at a slightangle as shown in Fig. 1 in order to hold the spring expanded and out ofcon-' tact with the pin 8. Without this angular slot the spring tends tocontract more on one side than the other so that the coils of the springrub together and produce friction and do not remain concentric with thepin 8. The spring 14 tends to counter-balance the weight of the windowand assists in raising the window after the spring has been contractedby lowering the window but the device will operate successful-1y withoutthe use of the spring. The gear 10 meshes with a small gear 15 which issecured to the member 16 on the opposite side of the bracket from thegear 15. The gear 17 meshes with a gear 18 in a casing 29, the casingbeing cut away as shown in Fig. 2 to allow the said gears to mesh. Thesegears are preferably stamped from heavy sheet metal in order to reducethe cost of manufacture. The gear 18, as shown in Fig. 5, is rotatablymounted on the lower end 19 of a shaft 20 and is aperture 23 in a member24 shown in Fig.-

6. This member 24 is adapted to turn with the shaft 20 and is providedwith a pair of legs 25 and 26 extending upwardly on opposite sides ofthe pin 21 as shown in Figs. 3, 4 and 5. A member 27 is provided with anoblong portion 28 as shown in Fig. 7 fitting an oblong aperture in thecasing 29 which holds the member 27 from rotation and allows rotation ofthe shaft 20 therethrough. A coiled spring 30 is positioned about themember 27 and is provided with two ends 31 and 32 extending on oppositesides of the pin 21 and between the legs 25 and 26 of the member 24.This coiled spring normally fits closely about the stationary member 27but by turning the shaft in either direction by means of acrank 33 shownin Fig. 2, the member 24 is turned which causes arm 7 to raise or lowerthe sash. Upon release of the crank the spring tends-to grip thestationary member 27 and spring ends 31 and 32 return to position shownin Fig.

. 4. The weight of the sash and window is supported by the arm 7 and asthe window is lowered the pin 8 is turned with the arm 7 and as the endof the spring is held by the stationary pin 13 mounted in the bracket 11the coiled spring 14 is wound up during the lowering of-the window andthe tension of the coiled spring 14 tends to raise the arm 7 and thuscounter-balances the weight of the sash and, window. In traveling overrough roads, should the window tend to move upwardly or downwardly thearm 7 is turned thereby which turns the gear train and when the gear 18,which is freely rotatable in the casing is turned in this mannor the pin21 carried thereby engages'the end 31 or 32 of the spring and tends tocoil the s ring more tightly about the stationary mem er 27 causing thespring to tightly grip the said stationary member and prevent rotationof the gear and at the same time prevent movement of the window. By thisconstruction the window is locked at any position upon release of acrank and cannot be moved except by rotation of the crank. Also by theconstruction shown the positioning of the bracket 11 onthe cross member12 need not be particularly accurate and thus the device may be easilyassembled in the body of the automobile with which it is to be used.

From the foregoing description it becomes evident that the device isvery simple and eliicient in operation, will not easily get out oforder, is composed of few parts and is of consequent low manufacturingcost and provides a device which accomplishes the objects described.

Having thus fully described our invention, what we claim is sash in aclosed vehicle body comprising the combination with the sash and thebody having a recess into and from which the sash maybe moved, of across member at the top of the recess, a supporting plate mounted .onand extending below the bar, a pin rotatably mounted in the lower end ofthe plate and projecting from opposite sides thereof, a gear toothedmember secured to the pin on the sash side of the plate, an arm in fixedrelation with the gear and extending radially therefrom, meansconnecting the outer end of the said arm with the sash whereby theturning of the arm about the gear axis raises or lowers the sash, a flatcoiled spring secured at its center to the opposite end of the pin, theouter end of the spring being secured to the supporting plate, a'gear onthe sash side of the plate meshing with the first named gear and a gearon the opposite side of the plate r0- tatable therewith, and a fourthgear meshing with the last named gear, a housing for the said fourthgear having an opening in one side to receive a peripheral portion ofthe third gear, a handle for rotating the said fourth gear, and a lockfor said fourth gear controlled solely by the handle.

2. A 'window regulator for moving a sash in a frame having a recess toreceive the sash comprising the combination with the sash and the frame,of a supporting plate extending into the recess from the open endthereof at one side of the path of travel of the sash, a pin rotatablymounted at the inner end of the plate projecting from opposite sidesthereof, a gear toothed member secured to the pin on the sash side ofthe plate, an arm extending radially there-' third gear on the oppositeside of the plate.

rotativelyconnected with the said second gear, and means for rotatingthe said third gear, said means being mounted on that side ofthe plateopposite the sash side and ineludin tion of which in either directionautomatically releases the lock and turns the gear train. 1. Mechanismfor operating a window In testimony whereof, we sign this specification.

EDWARD L. ACKERMAN. ALOIS J. ZWIERZINA.

a lock member and a handle, rota-

